In countries where large families are the norm, the urge to conform pushes people to have more children than they can economically support. And an effort to "keep up with the Joneses" leads people to consume ever more natural resources, a new economic model suggests. Full story

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Malaysia's Minister of Natural Resources and Environment G Palanivel arrives for the 15th Ministerial Steering Committee Meeting on Transboundary Haze Pollution in Kuala Lumpur July 17, 2013. Indonesia, Malaysia and Singapore were blanketed with hazardous smog for a few days in June, which has rais

The Oyster Recovery partnership works on Harris Creek, Maryland in this handout picture courtesy of the Maryland Department of Natural Resources taken by Mike Naylor, Shellfish Program Assistant Director at the Department of Natural Resources on May 16, 2013. A combination of overfishing, disease, p